Caramelization
Caramelization is the oxidation of sugar, a process used extensively in cooking for the resulting nutty flavor and brown color. Caramelization is a type of non-enzymatic browning reaction because it does not need enzymes. As the process occurs, volatile chemicals are released producing the characteristic caramel flavor.
The Process
Caramelization is a complex, poorly understood process that produces hundreds of chemicals. Here is an overview:
- equilibration of anomeric and ring forms
- sucrose inversion to fructose and glucose
- condensation
- intramolecular bonding
- isomerization of aldoses to ketoses
- dehydration reactions
- fragmentation reactions
- unsaturated polymer formation
Caramelization should not be confused with the Maillard reaction, in which a reducing sugar reacts with amino acids.
Caramelization Temperatures
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